[GroundUrMast]

Mileage is a tangential factor. Signal quality from 2 miles blocked by terrain can be far worse than a 70 mile line of site. This is what make the TV Fool report so helpful, you can see signal levels and path characteristics. Quite simply, the information in your TVFR provides a far more accurate means of understanding your reception than a secondary factor such as mileage. Basically, mileage estimates can be ignored in favor of better engineering data.

The added gain of the HD7698P would likely provide more than enough signal power... I would try this with no amp. This would be a premium solution.

The only other consideration would be, do you want to be able to receive real CH-4, KAHO-LD if and when it comes on the air? If so, consider using an all channel antenna such as the HD7080.

You could very likely use smaller versions of the antennas suggested thus far. But going larger allows you the signal power to split to several TV's without need of an amplifier.